The invention relates to a space pushing device (2) for straightening teeth.It includes: outer cylinder,HoofedSpring and inner rod；The front end of the outer cylinder is provided with a holding chamber.The rear end of the outer cylinder is provided with a concave part；The hoof seat system is in a disk shape.The front end face is provided with a convex part corresponding to the concave part at the rear end of the outer cylinder.The rear end face of the shoe seat is an arc-shaped concave part.The spring is installed in the chamber at the front end of the outer cylinder；The inner rod is also installed in the compartment at the front end of the outer cylinder.And the rear end of the inner rod is pushed by the front end of the spring.This creation is set up because of the long lack of teeth.And between the teeth that have been dumped on both sides of the missing teeth,The inner rod is pushed by a spring installed in the outer cylinder chamber.Slowly straighten the fallen teeth.本創作係有關一種用於矯直牙齒之推空間裝置(二)，其包含有：外筒、蹄座、彈簧及內桿；該外筒之前端設有容室，而外筒之後端設有凹部；該蹄座係呈一盤狀，其前端面上設有與外筒之後端設有凹部相對應契合之凸部，而蹄座之後端面則係呈內凹之弧狀部；該彈簧係裝設於外筒前端之容室內；該內桿亦裝設於外筒前端之容室內，且內桿之後端受彈簧之前端推頂，將本創作裝設於因缺牙過久，而缺牙部位兩側已有傾倒之牙齒之間，藉由裝設於外筒容室內之彈簧對內桿推頂，慢慢將傾倒之牙齒推正者。
